At 12:21 AM 7/23/2008 +0200, Irmen de Jong wrote:
Tibor Arpas wrote:
Hi,
I'm quite new to python and I ran into a performance problem with
wsgiref.simple_server. I'm running this little program.
[...]
I get many hundreds of responses/second on my local computer, which is fine.
But when I access this server through our VPN it performs very bad.
Could it be that the wsgiref is doing a reverse DNS lookup for every
incoming call?
(for instance to determine the remote server hostname for some
reason such as logging)
That could be a very slow operation.
Just an idea, I have no idea about the workings of wsgiref, I've
just seen this happening in other situations.
It isn't really even wsgiref-related. First, wsgiref.simple_server
is based on the other stdlib HTTP server modules.
Second, it's not intended for production use.
Third, it's not multi-threaded, which is likely to be a factor if the
performance tests are done using concurrent requests.
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